If you want to report on the number of machines per manufacturer that you have within your Configuration Manager environment then you can run this query directly on your SQL database or you can use it to create a report within SSRS.
The query is below and can be altered to fit your own needs by adding columns and tables if or where required.
SELECT CS.Manufacturer0 AS Manufacturer, COUNT(CS.Manufacturer0) AS Count FROM v_FullCollectionMembership AS FCM INNER JOIN v_GS_COMPUTER_SYSTEM CS ON FCM.ResourceID = CS.ResourceID WHERE (FCM.CollectionID = 'SMS00001') GROUP BY v_GS_COMPUTER_SYSTEM.Manufacturer0
Remember to change the CollectionID ‘SMS00001’ to whatever your “All Devices” collection is called or alternative collection that you want to use.
If you have any questions or feedback about this post, or if you would like us to create any queries for you, please go ahead and leave us a message below in the comments section and we will get back to you as quick as we can.